The initials stand for:PONY is an organization in softball similar to ASA, USSSA, NSA that has tournaments for the different age groups. It's more prevalent in some areas than others.
Protect
Our
Nations
Youth
Yes strong in certain parts of the country, esp. in areas where ASA was not adequatley meeting the demands of girl's FP softball. Many of the teams I encounter at PONY weekend tourneys, I also run into on the ASA tourney circuit. It's a good program, and well run on the national, regional zone, and state level.